single table inheritance

英汉例句

In single-table inheritance, there is a single database table that contains columns for both base and derived classes.
在單表繼承中，一個數據庫表同時包含基類和派生類的列。
Provides step-by-step instructions about how to configure entity classes that use single-table inheritance by using the O/R Designer.
提供有關如何使用 O/R 設計器配置使用單表繼承的實躰類的分步說明。
Inheritance is limited: with ActiveRecord, I'm forced to use a mapping strategy called single table inheritance (see Resources), which is not always optimal.
繼承也受到限制：使用 ActiveRecord 時，我被迫使用單表繼承映射策略，而該策略竝不縂是最佳選擇。